There is no set amount or duration required for alimony. Any lawyer will need more facts to give you advice. Alimony is based on your needs and your husband's ability to pay. There are also other factors that may be taken into consideration such as conduct of the parties and the duration of your marriage. Also, the alimony awards differ greatly depending on your judge. You should meet with an attorney about your specific situation so you can get a more thorough answer. Good luck!
There is no formula (and no guarantee of alimony or a specific property division), and the outcome will depend on the judge, and on details not in your post. The one certainty is that pro se litigants do far worse on these issues than people with lawyers, so retain counsel.
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As detailed above, there is no easy calculation for alimony. The Court will review the parties' entire financial situation and, where alimony is sought and authorized, alimony will be awarded "to either party in accordance with the needs of the party and the ability of the other party to pay." O.C.G.A. (c)
As evidenced in the link, the Georgia Code regarding alimony is broad and complex.
Please note that THESE COMMENTS ARE NOT INTENDED AS LEGAL ADVICE and are for informational purposes only. This response is not intended to create any attorney-client relationship and is only based on the limited facts given. The response might change should additional facts be learned and should not be relied on as legal advice. It is recommended that you consult with an attorney.